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Head-to-head Updated

Kumho Ecsta PS31 vs Bridgestone Potenza RE040 — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 0 + 0 road tests and 259 + 49 owner reviews. How we score

Ecsta PS31 is ahead, 65–51

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Kumho Ecsta PS31
Tire AKumho

Ecsta PS31

Summer

± 7

Tests – · none yet Owners 63 · 259 reviews

Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 63

    Dry

    Ecsta PS31 +9
    54
    Why this score
    SourceEcsta PS31Potenza RE040
    Professional tests (TWG score)≈ 65 (est.)≈ 59 (est.)
    Reviews found online6046

    Ecsta PS31: 60% × 64.6 (est.) + 40% × 59.7 = 63

    Potenza RE040: 60% × 58.8 (est.) + 40% × 45.8 = 54

    No road tests of dry for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

    No road tests of dry for Potenza RE040. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

  2. 68

    Wet

    Ecsta PS31 +17
    51
    Why this score
    SourceEcsta PS31Potenza RE040
    Professional tests (TWG score)≈ 69 (est.)≈ 56 (est.)
    Reviews found online6843

    Ecsta PS31: 60% × 69 (est.) + 40% × 67.6 = 68

    Potenza RE040: 60% × 55.7 (est.) + 40% × 43.2 = 51

    No road tests of wet for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

    No road tests of wet for Potenza RE040. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 58

    Snow

    Ecsta PS31 +10
    48
    Why this score
    SourceEcsta PS31Potenza RE040
    Professional tests (TWG score)≈ 64 (est.)≈ 59 (est.)
    Reviews found online4933

    Ecsta PS31: 60% × 63.7 (est.) + 40% × 49.2 = 58

    Potenza RE040: 60% × 58.6 (est.) + 40% × 33 = 48

    No road tests of snow for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).

    No road tests of snow for Potenza RE040. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).

  4. 65

    Comfort

    Ecsta PS31 +19
    46
    Why this score
    SourceEcsta PS31Potenza RE040
    Professional tests (TWG score)≈ 68 (est.)≈ 62 (est.)
    Reviews found online6435

    Ecsta PS31: 40% × 67.7 (est.) + 60% × 63.9 = 65

    Potenza RE040: 40% × 61.8 (est.) + 60% × 34.7 = 46

    No road tests of comfort for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

    No road tests of comfort for Potenza RE040. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

  5. 66

    Noise

    Ecsta PS31 +12
    54
    Why this score
    SourceEcsta PS31Potenza RE040
    Professional tests (TWG score)≈ 66 (est.)≈ 66 (est.)
    Reviews found online6635

    Ecsta PS31: 60% × 66.4 (est.) + 40% × 66.3 = 66

    Potenza RE040: 60% × 66.4 (est.) + 40% × 34.9 = 54

    No road tests of noise for Ecsta PS31 or Potenza RE040. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.

  6. 65

    Treadwear

    Ecsta PS31 +15
    50
    Why this score
    SourceEcsta PS31Potenza RE040
    Professional tests (TWG score)≈ 66 (est.)≈ 57 (est.)
    Reviews found online6540

    Ecsta PS31: 60% × 65.9 (est.) + 40% × 64.8 = 65

    Potenza RE040: 60% × 56.9 (est.) + 40% × 39.9 = 50

    No road tests of treadwear for Ecsta PS31. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

    No road tests of treadwear for Potenza RE040. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

  7. 68

    Handling (owners)

    Ecsta PS31 +20
    48
    Why this score
    SourceEcsta PS31Potenza RE040
    Reviews found online6848
Scores at a glance
CategoryKumho Ecsta PS31Bridgestone Potenza RE040
Relative Score 65 51
Dry 63 54
Wet 68 51
Snow 58 48
Comfort 65 46
Noise 66 54
Treadwear 65 50
Handling (owners) 68 48

Higher is better. The Relative Score follows your weights below; category scores do not change.

Weight the categories that matter to you

Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.

Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
± 7

Ecsta PS31

± 8

Potenza RE040

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A Ecsta PS31

Pros

  • Excellent price-to-performance ratio
  • High levels of ride comfort and low road noise
  • Strong dry traction for daily and spirited street driving

Cons

  • Soft sidewalls lead to vague steering response and 'squirm' during aggressive maneuvers
  • Inconsistent wet weather performance reported by some users, particularly in deep standing water
  • Tread life can be shorter than expected for some driving styles
All owner themes in the Ecsta PS31 review

Tire B Potenza RE040

Pros

  • Excellent dry weather grip and handling
  • High level of steering feedback and directness
  • Progressive and predictable breakaway characteristics

Cons

  • Excessive and intrusive road noise
  • Poor performance and lack of confidence in wet or cold conditions
  • Harsh ride quality due to stiff construction
All owner themes in the Potenza RE040 review

Specs side by side

Attribute A · Kumho Ecsta PS31 B · Bridgestone Potenza RE040
CategorySummerSummer
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available213
Rim diameters15″ – 18″16″ – 18″
Tread depth10/32″10/32″
UTQG460 A A140 A A
SidewallBlackwallBlackwall
Max pressure51 psi—
Sizes in common22

Which one should you actually buy?

Kumho Ecsta PS31

Bridgestone Potenza RE040

Winner: Kumho Ecsta PS31 — better handling, comfort and wet. It leads or ties in every category we score.

Pick tire A You enjoy sharp, responsive handling

Kumho Ecsta PS31 scores 68 vs 48 on handling.

Pick tire A You want the most comfortable ride

Kumho Ecsta PS31 scores 65 vs 46 on comfort.

Pick tire A Your priority is wet-weather safety

Kumho Ecsta PS31 scores 68 vs 51 on wet.

Pick tire A You want the longest tread life

Kumho Ecsta PS31 scores 65 vs 50 on treadwear.

Tire A · Kumho Ecsta PS31
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Tire B · Bridgestone Potenza RE040
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Ecsta PS31 or Potenza RE040?

Which is better in the wet, Ecsta PS31 or Potenza RE040?

Kumho Ecsta PS31, 68 vs 51 on our wet score.

Which grips better on dry roads, Ecsta PS31 or Potenza RE040?

Kumho Ecsta PS31, 63 vs 54 on our dry score.

Which is better in snow, Ecsta PS31 or Potenza RE040?

Kumho Ecsta PS31, 58 vs 48 on our snow score.

Which is quieter, Ecsta PS31 or Potenza RE040?

Kumho Ecsta PS31, 66 vs 54 on our noise score.

Which is more comfortable, Ecsta PS31 or Potenza RE040?

Kumho Ecsta PS31, 65 vs 46 on our comfort score.

Which lasts longer, Ecsta PS31 or Potenza RE040?

Kumho Ecsta PS31, 65 vs 50 on our treadwear score.

How do we compare tires?

Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.

Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.

Community buzz from Reddit and forums is shown for context only — it never changes the score. Full methodology